The phrase "a voluntary organization" is correct and usable in written English.
It can be used to describe an organization that operates on a voluntary basis, typically relying on unpaid individuals to carry out its activities.
Example: "The charity is a voluntary organization that relies on the dedication of its volunteers to support its mission."
Alternatives: "a nonprofit organization" or "a volunteer-based organization".
The American Association of Tissue Banks, a voluntary organization, also provides no guidelines.
Companies may follow practices laid out by the American Association of Tissue Banks, a voluntary organization, or create their own.
Faced with a worsening crisis, the security council was satisfied with that explanation and recognized the group as a "voluntary organization".
"Whoever deviates, we will not let them stay, whether a voluntary organization, an envoy, a diplomatic mission or a security force," he said.
… People do credit cards, equity lines,' said Borg, president of the North American Securities Administrators Association, a voluntary organization devoted to investor protection.
Funded by the United Food and Commercial Workers Unionn, OUR Walmart is a voluntary organization of current and former Walmart employees.
The Duma allowed its sessions to be suspended for some months, and a number of a voluntary organizations came into existence to lend support to the war effort.
"Very quickly we learned that constant communication is the hallmark of any voluntary organization, " he said.
My father was a clergyman who came to ordination late, after a successful wartime career as an artillery officer followed by a spell as the regional secretary of a Christian voluntary organization.
The Association is a purely voluntary organization of independent pharmacists.
The five-million-member organization argues that what is at stake is the freedom of a private, voluntary organization to "create and interpret its own moral code" -- in this instance, by excluding avowed homosexuals -- and that without such freedom, "American society would be fundamentally transformed".
